a massive explosion in the leavening ‘s capital has killed at least ten people this is bbc world news, the headlines. a massive explosion in the lebanese capital beirut has killed at least ten people and injured hundreds more. the cause is not yet known; the internal security chief has said it happened in an area housing highly explosive materials. president trump has said the coronavirus outbreak is as under control as it can get in the united states. in an interview with the axios news website he defended his administration's response to the virus there is intense speculation in the spanish media about the whereabouts of embattled ex—king juan carlos. it follows his shock announcement on monday that he was leaving the country. the 82—year—old is targeted by a corruption investigation. scientists in the uk have warned current testing and contact tracing is inadequate to prevent a second wave of coronavirus after schools reopen. they say increased transmission would also result from parents not having to stay at home

with their children. you are watching bbc news... let's stay with that story — as the government has acknowledged that its covid—19 test and trace programme must continue to improve. scientists have warned that it isn't good enough to prevent a second, potentially bigger wave of the virus — when children return to school. baroness harding — executive chair of nhs test and trace — says the way to combat the virus is for everyone to come forward for a test if they have symptoms. if you read the reports published in the lancet, what researchers have said is that we need to have an effective test and trace system. this percentage of people with symptoms that they are targeting and the percentage of people that are then reached and contacted are well within what our organisation can and is doing. so we are already contacting 75—80% of people who have been in close contact. and the one thing that

i really need everyone in the country to do is to come forward if they have symptoms. the researchers state very clearly that they don't know the percentage of people with symptoms that are coming forward to nhs test and trace. it is incumbent on all of us that if we are reaching for the limb sip packets, get attest. ——are reaching for the limb sip packets, get a test. for the first time in history — thousands of students in scotland have been given their results without sitting any summer exams after they were cancelled because of coronavirus. the grades are based on estimates from teachers. pass rates for the key school qualifications have increased at every level. the scottish qualifications authority, which moderated the results, saysjust under a quarter of the estimates it received had to be changed — most of them downwards. lorna gordon reports. it is the most nerve—racking of moments, the results in a year when there were no exams. i'm going to university, i got my grades.

so happy. i'm delighted for her. it has been a very tense wait. for many people see that there is a sense of relief. i did better—than—expected and i'm proud of myself.